RHEL 7 : php (RHSA-2016:2598)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An update for php is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

PHP is an HTML-embedded scripting language commonly used with the
Apache HTTP Server.

Security Fix(es) :

* A flaw was found in the way certain error conditions were handled by
bzread() function in PHP. An attacker could use this flaw to upload a
specially crafted bz2 archive which, when parsed via the vulnerable
function, could cause the application to crash or execute arbitrary
code with the permissions of the user running the PHP application.
(CVE-2016-5399)

* An integer overflow flaw, leading to a heap-based buffer overflow
was found in the imagecreatefromgd2() function of PHP's gd extension.
A remote attacker could use this flaw to crash a PHP application or
execute arbitrary code with the privileges of the user running that
PHP application using gd via a specially crafted GD2 image.
(CVE-2016-5766)

* An integer overflow flaw, leading to a heap-based buffer overflow
was found in the gdImagePaletteToTrueColor() function of PHP's gd
extension. A remote attacker could use this flaw to crash a PHP
application or execute arbitrary code with the privileges of the user
running that PHP application using gd via a specially crafted image
buffer. (CVE-2016-5767)

* A double free flaw was found in the mb_ereg_replace_callback()
function of php which is used to perform regex search. This flaw could
possibly cause a PHP application to crash. (CVE-2016-5768)

Red Hat would like to thank Hans Jerry Illikainen for reporting
CVE-2016-5399.

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.3 Release Notes linked from the References section.

See also :

https://www.redhat.com/security/data/cve/CVE-2016-5399.html
https://www.redhat.com/security/data/cve/CVE-2016-5766.html
https://www.redhat.com/security/data/cve/CVE-2016-5767.html
https://www.redhat.com/security/data/cve/CVE-2016-5768.html
http://www.nessus.org/u?e4086253
http://rhn.redhat.com/errata/RHSA-2016-2598.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 94561 ()

Bugtraq ID:

CVE ID: CVE-2016-5399
CVE-2016-5766
CVE-2016-5767
CVE-2016-5768

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